On screen
Cast
24 credited performers
Robert Livingston
Dr. Lawrence Baxter
Grace Bradley
Jean Sterling
Willard Robertson
Inspector 'Mac' McDonald
Pierre Watkin
Kennedy
Smiley Burnette
Jimmy
Granville Bates
Prof. Rexford Sterling
William Newell
Andrews
Byron Foulger
Pete Andorka
Wilbur Mack
F. J. Thompson
Matty Fain
Burke
Josephine Whittell
Nurse Nelson
Artwork unavailable
Charles Timblin
Swain
Artwork unavailable
Billy Griffith
Kellogg
William Hopper
Announcer
Artwork unavailable
Frank Du Frane
Golden
Mary Russell
Nurse (uncredited)
Artwork unavailable
Florence Gill
Spinster
Frank Austin
Henchman (uncredited)
Artwork unavailable
Richard Beach
Henchman (uncredited)
Artwork unavailable
Harrison Greene
Hospital Administrator (uncredited)
John Holland
Druggist (uncredited)
Monte Montague
Henchman (uncredited)
William H. O'Brien
Nightclub Waiter (uncredited)
Carleton Young
Radio Announcer (uncredited)